Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/Book12/24CountryDances_1776_Randall.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-6401-24CountryDances_1776_Randall.ps) >>/Users/jc/w/tmp/Tune-6401-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Book12/24CountryDances_1776_Randall.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Coll_64010.log 275008 Log file, useful mostly for debugging
Coll_64012.log 461211 Log file, useful mostly for debugging
Coll_64016.log 1318566 Log file, useful mostly for debugging
Tune-6401-24CountryDances_1776_Randall.abc 167 ABC music file with the extracted tune(s)
Tune-6401-24CountryDances_1776_Randall.ps 6 PostScript
Tune-6401-24CountryDances_1776_Randall.txt 167 Plain-text file with the extracted tune(s)
Tune-6401-get.log 12659 Log file, useful mostly for debugging
Tune-64010-get.log 4369 Log file, useful mostly for debugging
Tune-64014-get.log 13570 Log file, useful mostly for debugging
Tune-64015-get.log 8895 Log file, useful mostly for debugging
Tune-64016-get.log 4735 Log file, useful mostly for debugging
Tune-64018-get.log 4122 Log file, useful mostly for debugging
Tune-64019-get.log 3152 Log file, useful mostly for debugging
These files should be available for 24 hours.